Ebay doesn't sell xboxes, ebay users do. As such experiences will vary from seller to seller, from unit to unit. Best to buy from sellers with a large number of feedback and a high percentage of positive feedback, and a focus on gaming equipment. But know who you're buying from, what you're actually buying, and the seller's terms and conditions are.

If, once again, you're talking about refurbs, the warranty is a big question mark. The last thing you want to do is get a really great deal on a massive paperweight.

Got to be all the over heated ones..I'll pass..not much of an x-box fan.

too bad thats a joke and what reason would have you to believe its an over heated one, they dont overheat unless you are trying to overheat them, its obvious youre not much of a xbox fan.
also overrated is spelled as 1 word, not 2.